Means for threading paper through blueprint machines



June 26, 1945. H. BRUNK' MEANS...FOR THREADNG' PAPER 'I'HROUGH BLUE PRINT MAGHINES origina1 Filed ay 4 1940 Sheetssheet 1 by Said n1ateria1 my be threaded th1`ough Said drums.

3. l1e cornbination with a' drying Inachine comprising a frame, drying drums rotatably nlounted therein, and Ineans for d'iving said drums t0 draw the sheet to be dried th1ough the Inachine, said n1eans con1prising a' sprocket iixed to one of the bearing hubs of each drun1 0n the outside of said fraIne, 3 chain passing over said Sprockets to rotate said druIns, of a threading device conlprising idler gears Inounted on the inside of Said fralne eccentrica1ly vvith respect t0 each of said bear1g hubs, a Second set of idler gears si!11i1arly Inounted near the other end of each drun1, chains passing over said idler gears,

a link pivoted to each of sa.id chains, a cross bar connecting said link and nleans for advancing said cha'ins and cross ha1' to thread the pper aroud said drying druns.

4- The comb1ation with a web processing machine having ai frame and a plurality of drums with bearing hubs journaled in said frame, 0f a threading device c01Ilprising two sets of gealrs, each set being Inounted on said franle a't the op posite ends of said drul1s, a plurality of gears of each Set being provided adjacent each of Said bearing hubs and being eCcentically disp0sed With Tespect thereto, a pair of chams each passing over one set of said gears, a' link pivoted to each of said chains, a cross bar connecting said links and adapted to engage the leading end of a web to be processed, and nleans for adva cing said chains and cross bar to thread the web around Said dru]ns' HAROLD J. BRUN 

